Vintage 31mm Girard Perrigaux gyromatic unisex watch on lizard band

Vintage Girard Perrigaux 31mm GYROMATIC watch on brown lizard watch band. Gold filled case. Bought from original owner/buyer, a devoted collector who last serviced it in 2023. The watch runs perfectly and keeps perfect time (per gyromatic watches, they're powered by movement from wearing it). It's a great wearable everyday watch -- both for work and with a pair of jeans. Just got a new watch and this isn't getting worn.